CVE-2020-26895

mediumpriority · track · 21EPSS 0.007 · 53 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.71% (53rd) EPSS

CVSS 5 · medium

Is it mine?

23 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-28

Prior to 0.10.0-beta, LND (Lightning Network Daemon) would have accepted a counterparty high-S signature and broadcast tx-relay invalid local commitment/HTLC transactions. This can be exploited by any peer with an open channel regardless of the victim situation (e.g., routing node, payment-receiver, or payment-sender). The impact is a loss of funds in certain situations.

cvss

Technical severity, 0–10. One row per scoring source.

5.3

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.05mediumAV:N/AC:L/Au:N/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 1.4

v3.14.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-354USprimary

affected products (23)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
lightning network daemon project lightning network daemon= 0.1nvdUScpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:*:*:*:*:*:*:*:*
lightning network daemon project lightning network daemon= 0.1.1nvdUScpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:*:*:*:*:*:*:*:*
lightning network daemon project lightning network daemon= 0.10.0nvdUScpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:*:*:*:*:*:*:*:*
lightning network daemon project lightning network daemon= 0.2nvdUScpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:*:*:*:*:*:*:*:*
lightning network daemon project lightning network daemon= 0.2.1nvdUScpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:*:*:*:*:*:*:*:*
lightning network daemon project lightning network daemon= 0.3nvdUScpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:*:*:*:*:*:*:*:*
lightning network daemon project lightning network daemon= 0.4nvdUScpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:*:*:*:*:*:*:*:*
lightning network daemon project lightning network daemon= 0.4.1nvdUScpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:*:*:*:*:*:*:*:*
lightning network daemon project lightning network daemon= 0.4.2nvdUScpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:*:*:*:*:*:*:*:*
lightning network daemon project lightning network daemon= 0.5nvdUScpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:*:*:*:*:*:*:*:*
lightning network daemon project lightning network daemon= 0.5.1nvdUScpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:*:*:*:*:*:*:*:*
lightning network daemon project lightning network daemon= 0.5.2nvdUScpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:*:*:*:*:*:*:*:*
lightning network daemon project lightning network daemon= 0.6nvdUScpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:*:*:*:*:*:*:*:*
lightning network daemon project lightning network daemon= 0.6.1nvdUScpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:*:*:*:*:*:*:*:*
lightning network daemon project lightning network daemon= 0.7.0nvdUScpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:*:*:*:*:*:*:*:*
lightning network daemon project lightning network daemon= 0.7.1nvdUScpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:*:*:*:*:*:*:*:*
lightning network daemon project lightning network daemon= 0.8.0nvdUScpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:*:*:*:*:*:*:*:*
lightning network daemon project lightning network daemon= 0.8.1nvdUScpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:*:*:*:*:*:*:*:*
lightning network daemon project lightning network daemon= 0.8.2nvdUScpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:*:*:*:*:*:*:*:*

showing 20 of 23

also known as (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2020-10-21modified 2026-06-17

related (415)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2023-48795US	medium5.9OT high	93.5% (100th)	Exploit	2023-12-18
The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass integrity checks such that some packet…
CVE-2024-3596US	critical9.0OT high	14.9% (97th)	Exploit	2024-07-09
RADIUS Protocol under RFC 2865 is susceptible to forgery attacks by a local attacker who can modify any valid Response (Access-Accept, Access-Reject, or Access-Challenge) to any ot…
CVE-2023-33668US	critical9.8	0.52% (44th)	Exploit	2023-07-12
DigiExam up to v14.0.2 lacks integrity checks for native modules, allowing attackers to access PII and takeover accounts on shared computers.
CVE-2019-1166US	medium5.9	68.1% (99th)	—	2019-10-10
A tampering vulnerability exists in Microsoft Windows when a man-in-the-middle attacker is able to successfully bypass the NTLM MIC (Message Integrity Check) protection, aka 'Windo…
CVE-2026-49230US	critical9.1	0.30% (22nd)	Exploit	2026-06-19
Improper Validation of Integrity Check Value vulnerability in Apache APISIX. The jwe-decrypt plugin under default configuration is vulnerable to authentication bypass. This issue…

+410 more

references (10)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan